VULNERABILITY INTELLIGENCE

CVE-2021-20277

CVSS score7.5 HIGH
EPSS probability4.33%
CISA KEVNot currently listed
Published2021-05-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

A flaw was found in Samba's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability.

Weakness classification

  • secalert@redhat.com: CWE-125
  • nvd@nist.gov: CWE-787

Primary references